Race condition in IPFilter firewall 3.4.3 and earlier, when configured with overlapping "return-rst" and "keep state" rules, allows remote attackers to bypass access restrictions.
CVSS Severity (version 2.0):
Impact Subscore: 2.9
Exploitability Subscore: 4.9
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification
References to Advisories, Solutions, and Tools
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Advisory; Patch Information
20000525 Security Vulnerability in IPFilter 3.3.15 and 3.4.3
Advisory; Patch Information; Exploit
Vulnerable software and versions